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Security of decoy-state quantum key distribution with inexactly controlled source
Xiang-Bin Wang, Cheng-Zhi Peng, Jun Zhang +1
We show the unconditional security of decoy-state method quantum cryptography with whatever intensity error pattern provided that the error is not too large. Our result immediately…
Simple protocol for secure decoy-state quantum key distribution with a loosely controlled source
Xiang-Bin Wang, Cheng-Zhi Peng, Jian-Wei Pan
The method of decoy-state quantum key distribution (QKD) requests different intensities of light pulses. Existing theory has assumed exact control of intensities. Here we propose a…
Experimental Long-Distance Decoy-State Quantum Key Distribution Based On Polarization Encoding
Cheng-Zhi Peng, Jun Zhang, Dong Yang +7
We demonstrate the decoy-state quantum key distribution (QKD) with one-way quantum communication in polarization space over 102km. Further, we simplify the experimental setup and u…